Please provide the step by step excel explanation for the following:

The owner of a ski apparel store in Winter Park, CO must make a decision in July regarding the number of ski jackets to order for the following ski season. Each ski jacket costs $$44$ and can be sold during the ski season for $$135.$ Any unsold jackets at the end of the season are sold for $$35.$ The demand for jackets is expected to follow a Poisson distribution with an average rate of $80.$ The store owner can order jackets in lot sizes of $10$ units. $($Use $2,000$ trials.$)$

$($a$)$How many jackets should the store owner order if they want to maximize her expected profit?

$($b$)$What is the best$-$case outcome $($in dollars$)$ the owner may face on this product if they implement your suggestion?

$($c$)$ What is the worst$-$case outcome $($in dollars$)$ the owner may face on this product if they implement your suggestion?

$($d$)$How likely $($in percent$)$ is it that the store owner will make at least $$7,000$ if she implements your suggestion? $($Round your answer to two decimal places.$)$

$($e$)$How likely $($in percent$)$ is it that the store owner will make between $$6,000$ and $$7,000$ if she implements your suggestion? $($Round your answer to two decimal places.$)$